1: There's no word for cousin in Hebrew, and although the gospels were not penned in Hebrew, it is achievable that the 'brothers and sisters' references mean cousins, as being the speakers (exactly where the expression seems in described speech) would've been speaking Aramaic. It has also the added curiosity https://stephenjtlgg.mybjjblog.com/an-unbiased-view-of-jesus-47580884